module.exports = function (db, callback) {
    // 文章模型
    db.define("ArticleModel", {
        art_id: { type: 'serial', key: true },
        title: String,
        summary: String,
        content: String,
        created_time: Date,
        tag: String,
        classifica: String
    }, {
        table: "article"
    });
    return callback();
}